AutoCodes – GMC – P0880 2016 GMC Sierra

P0880 2016 GMC Sierra Code - Transmission Control Module Supply Voltage Circuit

Quick Answer

The Transmission Control Module (TCM) requires continuous battery voltage to operate. Common causes include Transmission Control Module (TCM) Power and/or Ground connection, Faulty Transmission Control Module, Transmission Control Module harness is open or shorted. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means: P0880 2016 GMC Sierra indicates Transmission Control Module Supply Voltage Circuit.
Common causes: Common causes include Transmission Control Module (TCM) Power and/or Ground connection, Faulty Transmission Control Module, Transmission Control Module harness is open or shorted.
Severity: High - diagnose this code as soon as possible.
Can I drive?: Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

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Code Popularity 210

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 03, 2022

Description
Possible Causes
How To Fix
Cost to Diagnose
Comments
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Code P0880 2016 GMC Sierra Description

The Transmission Control Module (TCM) requires continuous battery voltage to operate. The TCM uses ignition voltage and or ignition accessory switch voltage for TCM wake-up and operation. When ignition voltage and ignition accessory switch voltage are switched off, the TCM starts to power down. The TCM determines if the battery voltage is lost prior to completion of the power down. The Diagnostic Trouble Code (DTC) will be set when the TCM detects battery power to the TCM is lost before the TCM power down process is complete.

OBDII Code P0880 2016 GMC Sierra - Transmission Control Module Supply Voltage Circuit - AutoCodes.com — P0880 2016 GMC Sierra Code - Transmission Control Module Supply Voltage Circuit

What does this mean?

What are the Possible Causes of the DTC P0880 2016 GMC Sierra?

Transmission Control Module (TCM) Power and/or Ground connection
Faulty Transmission Control Module
Transmission Control Module harness is open or shorted
Transmission Control Module circuit poor electrical connection

How to Fix the DTC P0880 2016 GMC Sierra?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0880 2016 GMC Sierra code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P0880 2016 GMC Sierra code?

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.